O'Hare International Airport food workers who supply onboard meals demonstrated outside United Airlines headquarters in Chicago on Thursday, demanding that the carrier pay its food vendors more so they, in turn, could provide affordable health insurance to their workers.

Chicago-based United Airlines this week plans to begin testing a major redesign of its website that the carrier says will offer customers more information and flexibility while helping United sell more optional services.

American Airlines has signed on as the official airline of the Chicago Cubs and Wrigley Field , stealing the designation from hometown carrier United Airlines and starting a major marketing push to boost its name at its Chicago hub.